[INFO] cloning repository https://github.com/kisia0916/block-chain-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kisia0916/block-chain-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkisia0916%2Fblock-chain-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkisia0916%2Fblock-chain-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ceb23c5d9377682963eed55bd7b7c03b3c9b486
[INFO] checking kisia0916/block-chain-demo against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkisia0916%2Fblock-chain-demo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kisia0916/block-chain-demo
[INFO] finished tweaking git repo https://github.com/kisia0916/block-chain-demo
[INFO] tweaked toml for git repo https://github.com/kisia0916/block-chain-demo written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kisia0916/block-chain-demo on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kisia0916/block-chain-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80d888a7111197cc965efbb368bad0ec3c6adae165b0db00fef7bfc784e11f34
[INFO] running `Command { std: "docker" "start" "-a" "80d888a7111197cc965efbb368bad0ec3c6adae165b0db00fef7bfc784e11f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80d888a7111197cc965efbb368bad0ec3c6adae165b0db00fef7bfc784e11f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80d888a7111197cc965efbb368bad0ec3c6adae165b0db00fef7bfc784e11f34", kill_on_drop: false }`
[INFO] [stdout] 80d888a7111197cc965efbb368bad0ec3c6adae165b0db00fef7bfc784e11f34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08bf435a00c31d0a7e033fde6bdefef191e2818ae69fafa0d4249ca131fb698a
[INFO] running `Command { std: "docker" "start" "-a" "08bf435a00c31d0a7e033fde6bdefef191e2818ae69fafa0d4249ca131fb698a", kill_on_drop: false }`
[INFO] [stderr]     Checking block-chain-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `node_com` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct node_com {
[INFO] [stdout]   |        ^^^^^^^^ help: convert the identifier to upper camel case: `NodeCom`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `minor` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct minor {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to upper camel case: `Minor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `system_user` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct system_user {
[INFO] [stdout]    |        ^^^^^^^^^^^ help: convert the identifier to upper camel case: `SystemUser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sys_list` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct sys_list {
[INFO] [stdout]    |        ^^^^^^^^ help: convert the identifier to upper camel case: `SysList`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `node_com` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct node_com {
[INFO] [stdout]   |        ^^^^^^^^ help: convert the identifier to upper camel case: `NodeCom`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `minor` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct minor {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to upper camel case: `Minor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `system_user` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct system_user {
[INFO] [stdout]    |        ^^^^^^^^^^^ help: convert the identifier to upper camel case: `SystemUser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `sys_list` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct sys_list {
[INFO] [stdout]    |        ^^^^^^^^ help: convert the identifier to upper camel case: `SysList`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut main_sys = init_system(&node_num,&minor_num,&system_user_num);
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `main_sys`
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut main_sys = init_system(&node_num,&minor_num,&system_user_num);
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_main_sys`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `ledger`, and `pool` are never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct node_com {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 6 |     id:String,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     ledger:Vec<String>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     pool:Vec<String>
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `node_com` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct minor {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 12 |     id:String
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `minor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct system_user {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 16 |     id:String
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `system_user` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `node_com_list`, `minor_list`, and `system_user_list` are never read
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct sys_list {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 20 |     node_com_list:Vec<node_com>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 21 |     minor_list:Vec<minor>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 22 |     system_user_list:Vec<system_user>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `sys_list` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut main_sys = init_system(&node_num,&minor_num,&system_user_num);
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `main_sys`
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut main_sys = init_system(&node_num,&minor_num,&system_user_num);
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_main_sys`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `ledger`, and `pool` are never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct node_com {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 6 |     id:String,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     ledger:Vec<String>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     pool:Vec<String>
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `node_com` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct minor {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 12 |     id:String
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `minor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct system_user {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 16 |     id:String
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `system_user` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `node_com_list`, `minor_list`, and `system_user_list` are never read
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct sys_list {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 20 |     node_com_list:Vec<node_com>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 21 |     minor_list:Vec<minor>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 22 |     system_user_list:Vec<system_user>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `sys_list` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "08bf435a00c31d0a7e033fde6bdefef191e2818ae69fafa0d4249ca131fb698a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08bf435a00c31d0a7e033fde6bdefef191e2818ae69fafa0d4249ca131fb698a", kill_on_drop: false }`
[INFO] [stdout] 08bf435a00c31d0a7e033fde6bdefef191e2818ae69fafa0d4249ca131fb698a